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Reference
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| Citation |
Montchamp-Moreau, C., Ronsseray, S., Jacques, M., Lehmann, M., Anxolabehere, D. (1993). Distribution and conservation of sequences homologous to the 1731 retrotransposon in Drosophila. Molec. Biol. Evol. 10(4): 791--803. |
| FlyBase ID |
FBrf0059024 |
| Type of publication |
Research paper |
| Offprint Available |
Yes |
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External Crossreferences
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| PubMed ID |
8394978 |
| PubMed Abstract |
The distribution of 1731 retrotransposon-hybridizing sequences in the family Drosophilidae has been studied using a 1731 probe
from Drosophila melanogaster. Squash blot and Southern blot analyses of 42 species reveal that the 1731 sequences are widespread
within both the Sophophora and Drosophila subgenera and are also present in the genera Scaptomyza and Zaprionus. Hence the
1731 retrotransposon family appears to have a long evolutionary history in the Drosophilidae genome. Differences of hybridization
signal intensity suggested that the 1731 sequence is well conserved only in the three species most closely related to D. melanogaster
(D. simulans, D. mauritiana, and D. sechellia). A survey of insertion sites in numerous different populations of the previous
four species by in situ hybridization to polytene chromosomes has shown in all cases both chromocentric hybridizations and
a low number of sites (0-5) on the chromosomal arms. This number of sites is among the lowest observed in D. melanogaster
and D. simulans when 1731 is compared with other retrotransposon families. In addition, we have observed species-specific
patterns of the chromocentric hybridization signal, suggesting rapid modifications of the beta-heterochromatin components
since the radiation of the melanogaster subgroup.
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| Biosis |
96088413 |
| Zoological record |
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Associated Information
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| Text of personal communication |
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Also Published As
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Other Reference Information
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| Secondary IDs |
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| Language of publication |
English |
| Additional language(s) of abstract |
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| ISBN |
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| Place of publication |
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Published In
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| Abbreviation |
Molec. Biol. Evol. |
| Title |
Molecular Biology and Evolution |
| Authors |
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| Volume range |
1- |
| Year range |
1983- |
| Page range |
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| Publisher |
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| Place of publication |
Chicago, IL |
| Language of publication |
English |
| ISBN/ISSN |
0737-4038 |
| CODEN |
MBEVEO |
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Data from Reference
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| Natural transposons (34)
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